package cn.itcast.common.valid;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.HashSet;
import java.util.Set;

public class ListValueConstraintValidator implements ConstraintValidator<ListValue,Integer> {
    private Set<Integer> set = new HashSet<Integer>();
    // 初始化
    public void initialize(ListValue constraintAnnotation) {
        for (int val : constraintAnnotation.vals()) {
            set.add(val);
        }
    }

    //判断是否校验成功

    /**
     *
     * @param integer 需要校验的值
     * @param constraintValidatorContext 上下文
     * @return
     */
    public boolean isValid(Integer integer, ConstraintValidatorContext constraintValidatorContext) {
        return set.contains(integer);
    }
}
